Type-writing machine.



G. C. HARTING.

TYPE WRITING MACHINE. APPLICATION FILED JAN. 21, 1914.

Ea'tented Nov. 3, 1914.

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mi2/My l III .H. .il-.lll L.. "Il En n u K .u Il' "u u... l. d i d 'llllllll'll' s "/YS- A eLAYToN o. KARTING, or Woonsrocn. ILL-mors,Assenos TO THE OLIVER TYPE- WRITER COMPANY, GFCHIC'AGO, ILLINOIS, ACORPORATION OF ILLINOIS.

TYPE-W-RITING MACHINE.

Specification of Letters Patent.

Patented Nov. 3,1914.

Application filed January 21, 1914. Serial No. 813,374.

To all w71 ont it may concern:

Be it known that I, CIAY'roN C. Hamme, a citizen of the United States,and a resident of Woodstock, in the county of McHenry and State ofIllinois, have invented certain new and useful -Improvements in Type-1Vriting llflachincs; and 1 do hereby declare that the following ijsrafull, clear, and exact dcscription thereof, reference being had to theaccompanying drawings, and to the letters ot reference marked thereon,which form a part of this specification.

This invention relates to an improved device for releasing the carriageof a typewrit-k ing machine from its letter spacing` mecha\.

nism, whereby the carriage may be moved freely in either direction fromend to end of its travel, for the purpose ot' `facilitating theinsertion ot characters in an alreadyY printed line, or tor otherpurposes.

The device. constituting my invention 1nvolves substantial innirovementsin carriage release mechanism of the torm shown in U. S. Letters Patentto Ingersoll, No. 8217,543.) December -l-, 1906.

lMy in'iprovements are shown asiipplied to an Oliver typcwritingmachine. wherein endwise movement of the carriage, 'tor letter spacing,under the action ot' its` actuating spring'. is etl'ected through themedium of an escapement n'iecha'nisln elnbraci g a rotative pinion whichis yieldingly heh in intermeshingV relation, with a rack-bar on thecarriage traine and means for disengaging said carriage from theescapement mechanisn'. embracing a release bar adapted to force saidpinion out ot mesh with the rack har.

A mechanism constructed according to the Jfeatures olI nl v inventionmay. honorer. he applied to other typewritingv machines, hav.- ingsimilar means for effecting letter spacing.

itlv ..rva-,ntiou consists in the mattersA herein described, moreparticularly pointed out iu the appended claims and t'ully illustratedin the accompanying drawings. in which- Figure 1 is a view in `lirontelevation ot thc carriage of an Oliver typewriting machine; Fig. 2 is aview in horizontal section, raken on line of Fig. 3, with portionsbroken awa)` to show the carriage release device: Fig. 8 is a view intransverse, vertical seetion of the carriage and portionsof themamechanism olf the machine, as illustrated,

comprises features as follows: A rack-har 16 forms the lower, liront,longitudinal mem her of the carriage; said rack-bar being pro- `\videdat its forward edge with rack-teeth, which are located below, andproject a short distance torwardlv trom. the platen 13k. A verticalshalt 1T. jonrnaled in suitable bearings on the lift-trame V11. isprovided at its upper end with a pinion 1S, adap'tcd to engage thetet-th on said raclcbar and to he thrown out ot' engagement therewith bymeans et the release device, as hereinafter described. As herein shown,the shaft 1T is relatively mounted at its upper end in a block lt).adapted to slide toward and Yt'ron. the melt-har within a guide slot ina lorwardly projecting bracket '2O on the shittl'raunn A spring 21,mounted within said slot, acts to lvieldinglv torce the block toward therack-bar. The lower end of the shaft is mounted upon the shift-traine,in such a manner as to permit the upper end of said shaft to oscillatetoward and from the rackbar. An escapement wheel (not shown), mountedupon the lower portion ot' the shaft and operativelyl connected to theletter spacingl mechanism oi the machine, forms part o1 theescape-mcchanism which controls the rotative n'iovemei'it'- oli theshaft.

Referring now to the means tor actuating the .shaft 1T, for throwing thepinion 1S forwardly out o'l" mesh with the rack-hariw, a release "parE21 is longitudinally arranged upon an .ilnvardly facing, horixonalhearing sui-'face of the said rack-bar 1G. release har is similar inconstruction to that shown in the prior U, S. Letters Patentto (Hiver,Jo. 590,963, a nd lngersoll. No. 8237.569, and is adapted to move. orslide on the rack-bar in a direction. toward and from the shaft. Asillustrated in the drawings, said Said.

release bar consists of a fiat metal plate slightly tapering toward itsends and provided at its forward margin with an upright flange 25,adapted to engage a roller 26 mounted at the upper` end of the shaft 17immediately above the pinion 18. Said flange is preferably formed bybending upwardly the forward marginal portion of the bar. Adjacent tothe ends of the release bar are pre-vided two parallel slots 27, 27,

arranged obliqnely with reference to the forward margin of the bar.These slots engage headed screws or studs 28, 28,` extendingtherethrough and fixed in the rack-bar, said studs acting to hold saidrelease bar in position and to guide the same so that it has an obliquemovement on the rack-bar. The margins of the bar adjacent to the saidslots 27 are curved rearwardly, thereby forming projections 27, 27",within which the rear parts of said slots are formed.

At the left side of the carriage is an actuating rod I29, the samecomprising a Hat metal strip having sliding engagement with the flat topbearing surface of the rack-bar and arranged parallel with the releasebar slightly in the rear of its forward margin. Said rod 29 extendslaterally beyond the carriage and passes through a guide slot formedinjthe adjacent side plate 30 of said carriage. At the outer end of therod is provided a knob 31 adapted to be pressed by the finger of theoperator to effect the inward endwise movement of the rod. The

inner end portion of the rod is enlarged 1 transverse shoulder 24a andan oblique movement is given to the release-bar by the action oftheguide slots 27, 27 on the studs 28, 28, whereby the release-bar isshifted forwardly; the end of the rod sliding on the shoulder 24 as therelease-bar 24 moves forwardly.

At the opposite right-hand end of the carriage, the release-bar isprovided with an actuating device performing the same function as theactuating device at the left hand end of the carriage, but embracing acombination of levers operating as a compound lever. As illustrated,these levers are two in number. One of the levers 35 is pivoted upon thecarriage in the Irear of and inwardly from the end of the release-bar,by means of a pivot-stud 36, inserted in the raclebar and e'xtendingthough the lever intermediate of its ends, thereby forming two arms 37and 38. The left-band or longer arm 37 is curved and partially embracesa rearward projection 27b of the release-bar, in which is formed therear part of the right-hand slot 27, and engages the left hand andrearward part o-f the margin 'of said projection so as to act thereon ina direction forwardly and to the right, when the said arm 47 is swungforwardly. The right-hand arm 38 of the lever is made of U-shape and isprovided at its outer end with a short bearing surface 39. The otherlever 40 of the compound lever is pivoted to the rack-bar at the rightof the lever 38 and adjacent to the end of the release-bar. This leveris pivoted on the rack-bar so as to swing in a horizontal plane, by apivot stud 41 located intermediate of its ends. The longer or right-handarm 42 of the lever 40 projects outwardly through a slot in the adjacentside plate of the carriage and beyond the same, said arm being suitablyformed to provide a finger-piece having a rearwardly facing surface,adapted to receive the pressure of the operators finger in jmanipulating the actuating device. The inner or left-hand arm 43 of thelever 40 extends toward the lever 35 and constantly engages the frontface of the arm 38 thereof. By exerting a pressure in a forwarddirection upon the outer end of the arm 42, t-he attached one end of acoiled spring 44, the

opposite end of said spring 4being fixed to the carriage and at suchpoint that the axis of the spring substantially coincides with thedirection of movement of the releaseibar.

As shown in the drawings, the rear margin of the release-bar providedWith a hooked projection 45 preferably formed integral with the bar, andto which the end of the spring may easily be attached. he function ofthe spring is to draw the release-bar rearwardly to its non-operativeposition when the pressure on either of the actuating devices isreleased. These actuating devices are provided at both ends of thecarriage to permit the release-bar to be operated by either hand of theoperator and are designed to bcreadily vand easily accessible to thehand of the operator when grasping either of the knobs of the platen forthe purpose of turning the platen, or for shifting the carriage fromleft to right. The left-hand actuating device, embracing the endwisemovable rod, enables the operator, in pressl ing' o-n the rod, to shiftthe carriage to the right while simultaneously operating the re'lease-bar to release the escapement mechanism from'the rack-bar. Thisfeature is fully set forth in the prior U. S. Letters Patent toIngersoll and hence does not constitute a part of the present invention.The right-hand actuating device made as described, however, hasadvantages over the corresponding devicey shown in the said patentztolngersoll, as will appear 'from thev following. In the prio-r device,the lever handle, corresponding to the lever arm 42 in my presentinvention, was moved rearwardly to operate the release-banand to sooperate the device it was necessary for the operator to use the thumbfor this purpose. In shi/fting the carriage with the right hand, thenatural manner in doing so is to grasp the right-hand platen knob withthe thumb and index finger, and to also utilize the thumb for operatingthe release-bar involves an unnatural position of the hand. Moreover,when the thumb is used to press the righthand release lever'backwardly,the thumb and hand are'brought in position for contact with parts cf themachine forward of the carriage, as the latter is moved toward the left.but when the release lever` is arranged to be operated by the, finger,as herein dey scribed, the fingers and thumb may pass behind the partsin front of the carriage, without liability of striking the partsreferred to.

In my 'device the lever arm 42 is shifted forwardly/toward the operatorto operate the release-bar. Thus when the platen knob is grasped by theright hand in the most natural manner, the second finger may be easilyand conveniently employed in manipulating the release-bar withoutshifting the position of the hand upon the platen knob, and withoutliability of injuring` the hand by its contact with the parts at theright side of the machine, in the rapid movement of the carriage towardthe left.

A. furthe-r advantage gained b v the construction described in theright-hand release device, is that the release-bar may be thereby moresn'ioothly and easily thrown lorward against the action oi itsretraeting spring, because of the fact that the lever arm which directlyengages the release-bar, acts thereon in an oblique direction andsubstantially in the. direction of movement of the release-bar.

rl"he features of the device embodied in my inventionmay be modified inthe detailsl of construction without departing 'from the spirit of myinvention, and for that reason l do not wish to be limited to theparticular details of construction illustrated and desrrilwd, except inso far as specifically pointed out in the appended claims.

l claim as my invention:

l. The combination with a carriage rackbar, a pinion, a platen mountedon the carriage, of a release bar on and having horizontal movementtransversely of the carriage, means acting on thev release-bar to movethe same transversely backward, and means for actuating said release-bartransversely forward, comprising a lever pivoted on said carriage andhaving an arm which extends to the left of its pivotal axis and acts onthe release bar in a direction to movethe same forward, and a secondlever pivoted on the carriage and having an outer arm extendingoutwardly from the adjacent end of the carriage, and an inner armadapted to act rearwardly on the right-hand arm of the rst mentionedlever.

2. The combination with a carriage rack bar, a pinion, a platen mountedon the carriage, of a release-bar having horizontal movement on thecarriage endwise and transversely in an oblique path, means acting onthe release-bar to move the same endwise and transversely backward, andmeans for actuating said release-bar endwise and transversely forward,comprising a rearward projection on the release-bar having a bearingsurface facing rearwardly and to the left, a lever pivoted on saidcarriage and -provided with two arms, one of said arms acting on saidbearing surface in a direction forwardly and to the right, and meansadapted to act rearwardly on the other arm of said lever. i

3. The combination with a carriage rackbar, a pinion, a platen mountedon the carriage and having turning knobs at both ends of the carriage,of a release-bar having horizontal movement on the carriage endwise andtransversely in an oblique path, a relx1-acting spring acting on therelease-bar to move the same endwise and transversely` backward, andmeans for actuating said release-bar endwise and transversely forward,comprising a lever pivoted on said carnage,

and having an arm which extends to the left' of its pivoted axis andacts on the releasebar' in a direction forwardly andl to the right, anda second lever pivoted on s aid carriage and having an outer armextending outwardly from the end of the carriage adjacent to the platenturning knob at the right-hand end of the carriage and an inner armadapted to act rearwardly 'on the righthand arm of the rst mentionedlever.

1. The combination with a carriage rackbar, a pinion, a platen mountedon the carriage and having turning knobs at both ends of the carriage,of a release-bar having horizontal movement on the carriage endwise andtransversely in an obvided with two arms, one of said arms eX- tendingto the right of the pivotal axis of the lever and the other of said armseX- tending to the left of said pivotal axis and Aacting on said bearingsurface in a direction rwardly and to the right, and a second leverplvoted on sald carriage and provided with an outer arm extendingoutwardly from the right-hand end of the Carriage adjacent to the platenturning knob at that end of the carriage, and an inner arm adapted toact rearwardly on the right-hand 15 arm of the first mentioned lever.

In testimony, that I claim the foregoing as my invention I aliix mysignature in the presence of two Witnesses, this 19th day of January, A.D. 1914.

y CLAYTON C. HARTING.

Witnesses:

EUGENE C. WANN, MAURICE D. HERMAN.

